Can't remember the title of the manga but I remember this scene where:
The uke has a stalker(not literally in the sory, I just referred him as one because he has a total crush on the uke) because they are I think studying in an all boys high school. Then there is this seme who suddenly suggested that they should pretend to be lovers and they really did. The stalker confronts them in front of the uke's house(because they are pretending to be dating, they walked home together) and asked if they really love each other and are truly dating, then the seme suddenly kisses the uke so deep and told the stalker if he wants to see what comes next and the stalker goes away. The uke pushes the seme and call off the pretend-boyfriend agreement. In the end, of course they ended up together.

I've been looking for this manga since your first post about it and I finally found it! (I think!)
Kore wa Koi ni Fukumaremasu ka ? ? ?

This might be a bit late but thank you very much for taking the time to help me find it!!!